With two C-MOS IC's 4013,
you are now able to build the 4-bit counter.
You use a push button as
Such circuits are used for example in counting traffic.
Circuit of a Counter.
Reducing "Contact Bounce"
In the circuit you have added the capacitor C1.
It smooths the signal from the push button switch and hence
reduces the "Contact Bounce".
Carry out the experiment once with
and once without capacitor ...
In the next experiment, you replace the push botton switch S1
(Clk) by a simple clock signal.
Experiment 17 - Counter III